Rest API Authentication with Passport Laravel 9

Laravel 9 Rest Api Authentication with Passport

Step 1: Create Laravel Project
Step 2: Setup Databases
Step 3: Install & Setup Passport
Step 4: Create Api Controller & Routes
Step 5: Setup and Test Api

Create Laravel Project

To create a Laravel project, enter the following command in your terminal.

composer create-project --prefer-dist laravel/laravel laravel-passport

Setup Databases

Now, fill the details in env file.

.env

DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=database_name
DB_USERNAME=database_user_name
DB_PASSWORD=database_password

Install & Setup Passport

Install Passport via the Composer package manager:

composer require laravel/passport

Migrate database

php artisan migrate

Install passport client secret key

php artisan passport:install

Setup passport HasApiTokens traits in user modal,

app/Models/User.php

<?php

namespace App\Models;

use Illuminate\Contracts\Auth\MustVerifyEmail;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Foundation\Auth\User as Authenticatable;
use Illuminate\Notifications\Notifiable;
// use Laravel\Sanctum\HasApiTokens;
use Laravel\Passport\HasApiTokens;

class User extends Authenticatable
{
    use HasApiTokens, HasFactory, Notifiable;

    /**
     * The attributes that are mass assignable.
     *
     * @var array<int, string>
     */
    protected $fillable = [
        'name',
        'email',
        'password',
    ];

    /**
     * The attributes that should be hidden for serialization.
     *
     * @var array<int, string>
     */
    protected $hidden = [
        'password',
        'remember_token',
    ];

    /**
     * The attributes that should be cast.
     *
     * @var array<string, string>
     */
    protected $casts = [
        'email_verified_at' => 'datetime',
    ];
}

Next, you should call the Passport::routes method within the boot method of your App\Providers\AuthServiceProvider. This method will register the routes necessary to issue access tokens and revoke access tokens, clients, and personal access tokens:

app/Providers/AuthServiceProvider.php

<?php

namespace App\Providers;

use Illuminate\Foundation\Support\Providers\AuthServiceProvider as ServiceProvider;
use Illuminate\Support\Facades\Gate;
use Laravel\Passport\Passport;

class AuthServiceProvider extends ServiceProvider
{
    /**
     * The policy mappings for the application.
     *
     * @var array<class-string, class-string>
     */
    protected $policies = [
        // 'App\Models\Model' => 'App\Policies\ModelPolicy',
    ];

    /**
     * Register any authentication / authorization services.
     *
     * @return void
     */
    public function boot()
    {
        $this->registerPolicies();

        if (! $this->app->routesAreCached()) {
            Passport::routes();
        }
    }
}

Next, you need to set api driver for passport.

Also Read : How to Install Alpine.js in Laravel 9

config/auth.php

'guards' => [
        'web' => [
            'driver' => 'session',
            'provider' => 'users',
        ],
        'api' => [
            'driver' => 'passport',
            'provider' => 'users',
        ],
    ],

Create Api Controller & Routes

Run below command to create controller within api folder.

php artisan make:controller Api/AuthController

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app/Http/Controllers/Api/AuthController.php

<?php

namespace App\Http\Controllers\Api;

use App\Models\User;
use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Hash;
use Symfony\Component\HttpFoundation\Response;

class AuthController extends Controller
{
    public function login(Request $request)
    {
        if (auth()->attempt($request->all())) {
            return response([
                'user' => auth()->user(),
                'access_token' => auth()->user()->createToken('authToken')->accessToken
            ], Response::HTTP_OK);
        }

        return response([
            'message' => 'This User does not exist'
        ], Response::HTTP_UNAUTHORIZED);
    }

    public function register(Request $request)
    {
        $user = User::create([
            'name' => $request->name,
            'email' => $request->email,
            'password' => Hash::make($request->password)
        ]);

        return response($user, Response::HTTP_CREATED);
    }
}

routes/api.php

<?php

use App\Http\Controllers\Api\AuthController;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Route;

/*
|--------------------------------------------------------------------------
| API Routes
|--------------------------------------------------------------------------
|
| Here is where you can register API routes for your application. These
| routes are loaded by the RouteServiceProvider within a group which
| is assigned the "api" middleware group. Enjoy building your API!
|
*/

Route::post('login', [AuthController::class, 'login']);
Route::post('register', [AuthController::class, 'register']);